3816462 - Why is the error message "entry.save.pre.invalid_numeric" appearing when I try to match a Central Reconciliation invoice?

In Central Reconciliation, some of the invoices showing in the list "Unmatched invoices" might show already a valid Req ID, yet the system is not allowing the matching to happen. If the Req ID is present in the list of possible IDs for the matching, it means that the Request is active and open (therefore a valid match). However, when trying to "save" the invoice with the Req ID manually included, the system generates a specific error message and blocks the possible matching.

I am trying to match an invoice to a valid Request ID but the system does not allow me to do so, generating the error "entry.save.pre.invalid_numeric" , KBA , CON-CA-USP-CRC , Credit Cards , Problem