Problem Description
The currency code entered in the Plex purchase order header is incorrect, and I cannot edit it.
Solution Summary
To enable editing of the currency picker after an incorrect currency code has been entered in the purchase order, you'll need to access the Purchase Order Type settings. Ensure that the currency picker flags are configured correctly. The "Supplier Default Only" flag restricts the currency field on the PO header to only allow the currency associated with the supplier. If no currency code is defined for the supplier, the system will revert to using the default currency defined for the PCN.
Steps to Resolution
To verify and modify the Currency field on the purchase order form:
1. Access the Purchase Order Type settings.
2. Select the Purchase Order Type you want to enable for the currency pick list and update.
3. In the PO Header section, find the currency picker flags and ensure that the "Supplier Default Only" flag is turned off.
If you are using Workflow update the purchase order to a status that will allow changes. provides customers with the capability to restrict updates to specific fields within a purchase order based on its status.
The Purchase Order Status Field Locks screen facilitates the locking of various fields within the Purchase Order header and lines, including the Quantity field of Purchase Order line releases. Each customer may implement their own internal controls, which may entail multiple steps for the elaboration and approval of a purchase order until it is deemed ready for submission to the supplier. As the order progresses through these steps—often within a structured purchase order workflow—certain fields that may have been updated in prior steps need to be safeguarded against unintended or malicious alterations. Plex refrains from imposing restrictions on these procedural steps, allowing for infinite permutations of steps, statuses, and fields that can be controlled.
Rather than hard-coding specific fields to particular purchase order statuses, Plex has introduced the concept of status field locks, thereby enabling each customer to determine which fields should be locked at any given status. Initially, the Plex subscriber must review the available fields for locking and make determinations regarding which fields to secure at each specific status. With this information, the administrator can then navigate to the Purchase Order Status Field Locks screen, select a status, and assign the fields that should be locked when the Purchase Order is categorized under that status. Once the mapping has been established, it will be enforced accordingly.
Note: To modify a locked field, it is necessary to revert the status to a prior state that permits updates to that field.