Error When Syncing > Failed to validate signature

Error Message: Failed to validate signature with Invoice Number

Wise-Sync has identified that this error is a result of invalid characters, and the record batch is not successfully posted.


If you receive the above error because of an invalid character:

  1. There is an # used in the Vendor Invoice Number
  2. There are leading or trailing spaces in the PO Number.


1. Open the Purchase Order that has failed to batch, and edit the vendor invoice number so that the # is not present.

2. Open the Purchase Order and remove any leading or trailing spaces in the PO Number.


Partners using the "Alternate Vendor Invoice Date Source" will need to ensure that the invoice is updated at the correct location, based on the setting selected.

Paul is the author of this solution article.

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