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The following is a complete list of the possible errors and warnings you may encounter while submitting a Merge Request.

Validation Errors

Validation Message

What does this mean?

How can I fix?

ISBN does not have data.

Warning

The ISBN provided has a past Publication Date. All merge requests must be submitted in advance of the book' publication date.

The ISBN is invalid, and therefore cannot be submitted for a Merge Request. Please provide a valid ISBN to continue.

  • note that this error also comes up when you don’t separate your ISBNs with a comma

ISBN <ISBN> is already included in an existing merge.

Error Messages

Explain that as you address the failures, you will see the error messages disappear.

Error Message

What does this mean?

How can I fix?

Invalid ISBN(s) provided.

Your request does not meet the minimum number of ISBNs. Please enter between 2 and 5 ISBNs to continue.

No Primary ISBN selected.

ISBN cannot have a past Publication Date.

Merge request cannot contain ISBN that has been included in an existing merge.

Your request exceeds the maximum number of ISBNs. Please enter between 2 and 5 ISBNs to continue.