> ## Documentation Index
> Fetch the complete documentation index at: https://developers.cmicglobal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update a Specific Purchase Order Header

## OpenAPI

````json PATCH /po-rest-api/rest/1/pomaster/F3B7677353477375E05316821FAC220C
{
  "openapi": "3.0.0",
  "info": {
    "title": "API Catalog",
    "description": "",
    "version": "1.0.0"
  },
  "servers": [
    {
      "url": "https://mobtest.cmiccloudr12.com/cmictestrti",
      "description": "CMIC API Server"
    }
  ],
  "security": [
    {
      "cmicBasicAuth": []
    }
  ],
  "tags": [
    {
      "name": "Highlights"
    },
    {
      "name": "Asset Management | Equipment"
    },
    {
      "name": "Asset  Management | Fixed Assets"
    },
    {
      "name": "Asset Management | Purchase Order"
    },
    {
      "name": "Asset Management | Inventory"
    },
    {
      "name": "Asset Management | Requisition"
    },
    {
      "name": "Asset Management | Purchase Change Order"
    },
    {
      "name": "Bim Model"
    },
    {
      "name": "Bim Model Revision"
    },
    {
      "name": "Bim Tag Model"
    },
    {
      "name": "Bim Tags"
    },
    {
      "name": "Bim FileUpload Jersey"
    },
    {
      "name": "Core System | Business Partners"
    },
    {
      "name": "Core System | Business Partner Addresses"
    },
    {
      "name": "Core System | Bank"
    },
    {
      "name": "Core System | Currency"
    },
    {
      "name": "Core System | Exchange Rates"
    },
    {
      "name": "Core System | Global  Table Text Codes"
    },
    {
      "name": "Core System | Global Table  Regions"
    },
    {
      "name": "Core System | Terms"
    },
    {
      "name": "Core System | System Contact"
    },
    {
      "name": "Core System | Weight Measures"
    },
    {
      "name": "Core System | Field User Defined Classifiers"
    },
    {
      "name": "Core System | User Defined Classifiers by Object"
    },
    {
      "name": "Core System | User Extension Definitions by Object"
    },
    {
      "name": "Core System | User Extention Field Data Value"
    },
    {
      "name": "Core System | User Extension Values by Object"
    },
    {
      "name": "Core System | User System Role"
    },
    {
      "name": "Core System | User Project Role"
    },
    {
      "name": "Core System | Documents by Object"
    },
    {
      "name": "Core System | Audit Status Log by Object"
    },
    {
      "name": "Core System | Licensed Users"
    },
    {
      "name": "Core System | Company Access"
    },
    {
      "name": "Core System |  Copy User Settings"
    },
    {
      "name": "Core System | User Maintenance"
    },
    {
      "name": "Core System | User Roles"
    },
    {
      "name": "Core System | Security Groups"
    },
    {
      "name": "Core System | Job/Project Security"
    },
    {
      "name": "Core System | Weight Measure with Conversions Code"
    },
    {
      "name": "Core System | Weight Measure Conversions Code"
    },
    {
      "name": "Core System | User-defined-fields"
    },
    {
      "name": "Core System | User-extension"
    },
    {
      "name": "ECM and Workflow | Image Manager"
    },
    {
      "name": "Financials | General Ledger"
    },
    {
      "name": "Financials | Accounts Payable"
    },
    {
      "name": "Financials | Accounts Receivable"
    },
    {
      "name": "Preventative Maintenance | Issue Work Orders"
    },
    {
      "name": "Preventative Maintenance | Issue Work Items"
    },
    {
      "name": "Preventative Maintenance | Issue Work Budgets"
    },
    {
      "name": "Preventative Maintenance | Issue Priorities"
    },
    {
      "name": "Preventative Maintenance | Issue Status"
    },
    {
      "name": "Preventative Maintenance | Issue Types"
    },
    {
      "name": "Preventative Maintenance | Accumulative Equipment"
    },
    {
      "name": "Preventative Maintenance | Work Orders"
    },
    {
      "name": "Preventative Maintenance | Work Items"
    },
    {
      "name": "Preventative Maintenance | Work Budgets"
    },
    {
      "name": "Preventative Maintenance | Priorities"
    },
    {
      "name": "Preventative Maintenance | Tasks"
    },
    {
      "name": "HCM | UKG Pay Deductions"
    },
    {
      "name": "HCM | UKG Pay Earnings"
    },
    {
      "name": "HCM | UKG Pay Headers"
    },
    {
      "name": "HCM | UKG Pay Taxes"
    },
    {
      "name": "HCM | Payroll Geographical States"
    },
    {
      "name": "HCM | Payroll Trades"
    },
    {
      "name": "HCM | Payroll Union"
    },
    {
      "name": "HCM | Payroll Pay Runs"
    },
    {
      "name": "HCM | Payroll Pay Groups"
    },
    {
      "name": "HCM | Payroll Tax"
    },
    {
      "name": "HCM | Payroll Worker Compensation"
    },
    {
      "name": "HCM | Payroll Work Locations"
    },
    {
      "name": "HCM | Payroll Trade Pay Rates"
    },
    {
      "name": "HCM | Payroll Union Pay Rates"
    },
    {
      "name": "HCM | Payroll Job Pay Rates"
    },
    {
      "name": "HCM | Payroll Master Benefits"
    },
    {
      "name": "HCM | Payroll Master Deductions"
    },
    {
      "name": "HCM | Payroll Ben/Ded/Leave Base Codes"
    },
    {
      "name": "HCM | Payroll Ben/Ded Plans"
    },
    {
      "name": "HCM | Payroll Ben/Ded Plan Options"
    },
    {
      "name": "HCM | Payroll Company Benefits"
    },
    {
      "name": "HCM | Payroll Company Deductions"
    },
    {
      "name": "HCM | Payroll Vertex Geographic Locations"
    },
    {
      "name": "HCM | Payroll Checks"
    },
    {
      "name": "HCM | Payroll Timesheets"
    },
    {
      "name": "HCM | Employee"
    },
    {
      "name": "HCM | Employee (Minimum payload)"
    },
    {
      "name": "HCM | Employee History"
    },
    {
      "name": "HCM | Tax Exemptions"
    },
    {
      "name": "HCM | Employee Tax Overrides"
    },
    {
      "name": "HCM | Employee Pay Splits"
    },
    {
      "name": "HCM | Employee Benefits"
    },
    {
      "name": "HCM | Employee Clock In and Out"
    },
    {
      "name": "HCM | Employee Deductions"
    },
    {
      "name": "HCM | Employee Leaves"
    },
    {
      "name": "HCM | Employee Leave History"
    },
    {
      "name": "HCM | Employee Hour Types"
    },
    {
      "name": "HCM | Employee Pay History"
    },
    {
      "name": "HCM | Employee Work Statuses"
    },
    {
      "name": "HCM | Employee Security Group"
    },
    {
      "name": "HCM | Crewtime Crew"
    },
    {
      "name": "HCM | Crewtime Employee Timesheet"
    },
    {
      "name": "HCM | Crewtime Equipment Timesheet"
    },
    {
      "name": "HCM | Crew Maintenance Activity Assignment"
    },
    {
      "name": "HCM | Crew Maintenance Member Assignment"
    },
    {
      "name": "HCM | Crew Maintenance Member Trade and Union Assignment"
    },
    {
      "name": "HCM | Crew Maintenance Equipment Assignment"
    },
    {
      "name": "HCM | Crew Maintenance Equipment Detail Assignment"
    },
    {
      "name": "HCM | HR Requisitions"
    },
    {
      "name": "HCM | HR Relations"
    },
    {
      "name": "HCM | HR Employee Skills"
    },
    {
      "name": "HCM | HR Incident"
    },
    {
      "name": "HCM | HR Employee Relatives / Dependents"
    },
    {
      "name": "HCM | HR Employee Positions"
    },
    {
      "name": "HCM | HR Applicants"
    },
    {
      "name": "HCM | HR Applications"
    },
    {
      "name": "HCM | Vertex Location City"
    },
    {
      "name": "HCM | HR Application History"
    },
    {
      "name": "HCM | HR Dependent Benefits"
    },
    {
      "name": "HCM | HR Dependent Deductions"
    },
    {
      "name": "HCM | HR Employee Elected Plans"
    },
    {
      "name": "HCM | HR Employee Training Certifications"
    },
    {
      "name": "HCM | HR Trainings"
    },
    {
      "name": "HCM | E-Timesheets"
    },
    {
      "name": "HCM | System Contacts"
    },
    {
      "name": "HCM | System User Payroll Security Group"
    },
    {
      "name": "HCM | Payroll Timesheet Posting"
    },
    {
      "name": "HCM | CrewTimesheet Posting"
    },
    {
      "name": "HCM | HR Positions Master"
    },
    {
      "name": "HCM | Payroll Pay Periods"
    },
    {
      "name": "HCM | Payroll Rate Codes"
    },
    {
      "name": "HCM | Payroll Overhead Codes and Rates"
    },
    {
      "name": "HCM | Payroll Assigned Overhead to Jobs"
    },
    {
      "name": "Materials  Management | Material Sale Orders"
    },
    {
      "name": "Materials  Management | Material Sale Orders Details"
    },
    {
      "name": "Materials  Management | Truck Rate Detail"
    },
    {
      "name": "Opportunity Management | Competitors"
    },
    {
      "name": "Opportunity Management | Opportunities"
    },
    {
      "name": "Opportunity Management | Revenue Details"
    },
    {
      "name": "Opportunity Management | Opportunity History"
    },
    {
      "name": "Opportunity Management | Organization"
    },
    {
      "name": "Project Controls | Job Billing"
    },
    {
      "name": "Project Controls | Job Cost"
    },
    {
      "name": "Project Controls | PCI Details"
    },
    {
      "name": "Project Controls | Unposted PCI Details"
    },
    {
      "name": "Project Controls | PCI Headers"
    },
    {
      "name": "Project Controls | Owner Change Orders"
    },
    {
      "name": "Project Controls | CM Statuses"
    },
    {
      "name": "Project Controls | CM Types"
    },
    {
      "name": "Project Controls | CM Vendor Details"
    },
    {
      "name": "Project Controls | Post PCI"
    },
    {
      "name": "Project Management | Uploading Documents"
    },
    {
      "name": "Project Management | Downloading Documents"
    },
    {
      "name": "Project Management | Foreign Bid Item Imports"
    },
    {
      "name": "Project Management | Communications"
    },
    {
      "name": "Project Management | Daily Journals"
    },
    {
      "name": "Project Management | Communications Types"
    },
    {
      "name": "Project Management | Daily Journal Daily Work Plans"
    },
    {
      "name": "Project Management | Daily Journal Field Forces"
    },
    {
      "name": "Project Management | Daily Journal Labour"
    },
    {
      "name": "Project Management | Daily Journal Materials"
    },
    {
      "name": "Project Management | Daily Journal Owner Equipment"
    },
    {
      "name": "Project Management | Daily Journal Quality Control"
    },
    {
      "name": "Project Management | Daily Journal Tasks"
    },
    {
      "name": "Project Management | Daily Journal Trade Equipment"
    },
    {
      "name": "Project Management | Daily Journal Transactions"
    },
    {
      "name": "Project Management | Daily Journal User Defined Data"
    },
    {
      "name": "Project Management | Daily Journal Visitors"
    },
    {
      "name": "Project Management | Daily Journal Bill Details"
    },
    {
      "name": "Project Management | Field Work Directives"
    },
    {
      "name": "Project Management | Contract Types"
    },
    {
      "name": "Project Management | Company Contacts"
    },
    {
      "name": "Project Management | Distribution BCC"
    },
    {
      "name": "Project Management | Distribution CC"
    },
    {
      "name": "Project Management | Field Work Directive Statuses"
    },
    {
      "name": "Project Management | Issues"
    },
    {
      "name": "Project Management | Key Players"
    },
    {
      "name": "Project Management | Meetings"
    },
    {
      "name": "Project Management | Meeting Attendees"
    },
    {
      "name": "Project Management | Meeting Item Statuses"
    },
    {
      "name": "Project Management | Meeting Tracks"
    },
    {
      "name": "Project Management | Notes"
    },
    {
      "name": "Project Management | Projects"
    },
    {
      "name": "Project Management | Project Items"
    },
    {
      "name": "Project Management | Project Item Phase Segment Sums"
    },
    {
      "name": "Project Management | Project Partners"
    },
    {
      "name": "Project Management | Notices"
    },
    {
      "name": "Project Management | Notice Statuses"
    },
    {
      "name": "Project Management | Owner JS Query"
    },
    {
      "name": "Project Management | PCI Real Locations"
    },
    {
      "name": "Project Management | Project Contacts"
    },
    {
      "name": "Project Management | RFIs (Requests for Information)"
    },
    {
      "name": "Project Management | RFI Statuses"
    },
    {
      "name": "Project Management | Submittal Packages"
    },
    {
      "name": "Project Management | Submittal Package Details"
    },
    {
      "name": "Project Management | Submittal Package Status"
    },
    {
      "name": "Project Management | Submittals"
    },
    {
      "name": "Project Management | Submittal Status"
    },
    {
      "name": "Project Management | Transmittals"
    },
    {
      "name": "Project Management | Subcontract Headers"
    },
    {
      "name": "Project Management | Subcontract Schedules"
    },
    {
      "name": "Project Management | Subcontract Sechedule Phase Segment Sums"
    },
    {
      "name": "Project Management | User Roles"
    },
    {
      "name": "Project Management | Punchlists"
    },
    {
      "name": "Project Management | Punchlist Details"
    },
    {
      "name": "Project Management | Punchlist Statuses"
    },
    {
      "name": "Project Management | Meeting Items"
    },
    {
      "name": "Project Management | Self Perform Vendor"
    },
    {
      "name": "Project Management | Submittal Types"
    },
    {
      "name": "Project Management | Assign contact and partner to project"
    },
    {
      "name": "Project Management | Subcontract Prequal"
    },
    {
      "name": "Project Management | Bid Item Package"
    }
  ],
  "paths": {
    "/po-rest-api/rest/1/pomaster/F3B7677353477375E05316821FAC220C": {
      "patch": {
        "tags": [
          "Asset Management | Purchase Order"
        ],
        "summary": "Update a Specific Purchase Order Header",
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "example": {
                  "PomstCurrCode": "CAD"
                }
              }
            }
          }
        },
        "parameters": [
          {
            "name": "Content-Type",
            "in": "header",
            "schema": {
              "type": "string"
            },
            "example": "application/vnd.oracle.adf.resourceitem+json"
          }
        ],
        "responses": {
          "200": {
            "description": "OK",
            "headers": {
              "Content-Type": {
                "schema": {
                  "type": "string",
                  "example": "application/vnd.oracle.adf.resourceitem+json"
                }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "type": "object"
                },
                "example": {
                  "PomstAcctDescription": null,
                  "PomstActionCode": null,
                  "PomstAddCode": null,
                  "PomstAddCompCode": null,
                  "PomstAddCompName": null,
                  "PomstAddName": null,
                  "PomstAdjCode": null,
                  "PomstAdjPrice": null,
                  "PomstBchNum": null,
                  "PomstBilltoAddCode": null,
                  "PomstBilltoAddName": null,
                  "PomstBuyCode": "CMICUSER",
                  "PomstBuyName": "CMICCUSER",
                  "PomstChgCode": "O",
                  "PomstCompCode": "001",
                  "PomstCompName": "CMiC Construction Inc",
                  "PomstComplianceFlag": "Y",
                  "PomstContactCode": null,
                  "PomstContactName": null,
                  "PomstCostedCode": null,
                  "PomstCurrCode": "CAD",
                  "PomstCurrConvNum": 1,
                  "PomstDefaultRecCode": "M",
                  "PomstDeptCode": null,
                  "PomstDesc1": null,
                  "PomstDesc2": null,
                  "PomstDistTypeCode": "M",
                  "PomstExptdDate": "2022-12-21",
                  "PomstFobCode": null,
                  "PomstFobName": null,
                  "PomstHoldPaymentDays": 0,
                  "PomstHoldPaymentFlag": "N",
                  "PomstImageFilename": null,
                  "PomstInvCode": null,
                  "PomstInvDate": null,
                  "PomstInvDiscAmt": null,
                  "PomstInvDiscDate": null,
                  "PomstInvDueDate": null,
                  "PomstInvSerCode": null,
                  "PomstInvTypeCode": null,
                  "PomstJobCode": null,
                  "PomstJobCompCode": "001",
                  "PomstManPoRecFlag": null,
                  "PomstNum": "16.00099",
                  "PomstOrdDate": "2022-12-21",
                  "PomstOrigBidpAmt": null,
                  "PomstPoAmount": 0,
                  "PomstPorgrCode": null,
                  "PomstPrintStatus": null,
                  "PomstRecCode": null,
                  "PomstRecDate": null,
                  "PomstRefDate": null,
                  "PomstRefNum": null,
                  "PomstReleaseNum": 1,
                  "PomstReprintDate": null,
                  "PomstReqCode": "CMICUSER",
                  "PomstReqName": "CMICCUSER",
                  "PomstReqNum": null,
                  "PomstReqReason": null,
                  "PomstRoutCompCode": null,
                  "PomstRoutJobCode": null,
                  "PomstSelectFlag": "N",
                  "PomstShipinstTxt1Code": null,
                  "PomstShipinstTxt2Code": null,
                  "PomstShipinstTxt3Code": null,
                  "PomstShipinstTxt4Code": null,
                  "PomstShipinstTxt5Code": null,
                  "PomstShpinstDesc": null,
                  "PomstShplneCode": null,
                  "PomstShplneName": null,
                  "PomstShpmetCode": null,
                  "PomstShpmetName": null,
                  "PomstStatCode": "R",
                  "PomstStateDesc": "Approved",
                  "PomstSuspDeptCode": null,
                  "PomstSuspDeptName": null,
                  "PomstTermCode": "NET30",
                  "PomstTermDiscDay": 0,
                  "PomstTermDiscPc": 0,
                  "PomstTermDueDay": 30,
                  "PomstTermName": "Net 30",
                  "PomstTxt1Code": null,
                  "PomstTxt2Code": null,
                  "PomstTypeCode": "S",
                  "PomstUnadjPrice": null,
                  "PomstUserField1": null,
                  "PomstUserField2": null,
                  "PomstUserField3": null,
                  "PomstVUuid": "F3B7677353477375E05316821FAC220C",
                  "PomstVenCode": "1159",
                  "PomstVenName": "Ace Supply Co. Inc.",
                  "PomstVendOrderAddCode": null,
                  "PomstWipAccCode": null,
                  "PomstWipDeptCode": null,
                  "PomstWkfPriorityCode": "1",
                  "PomstIuCreateDate": "2023-02-02T12:23:56+00:00",
                  "PomstIuUpdateDate": null,
                  "PomstPostDate": null,
                  "links": [
                    {
                      "rel": "self",
                      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/po-rest-api/rest/1/pomaster/F3B7677353477375E05316821FAC220C",
                      "name": "pomaster",
                      "kind": "item"
                    },
                    {
                      "rel": "canonical",
                      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/po-rest-api/rest/1/pomaster/F3B7677353477375E05316821FAC220C",
                      "name": "pomaster",
                      "kind": "item"
                    },
                    {
                      "rel": "child",
                      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/po-rest-api/rest/1/pomaster/F3B7677353477375E05316821FAC220C/child/PoDetailViewObj",
                      "name": "PoDetailViewObj",
                      "kind": "collection"
                    }
                  ]
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "cmicBasicAuth": {
        "type": "http",
        "scheme": "basic",
        "description": "Basic authentication"
      }
    }
  }
}
````