Message SAP XS010 - Invalid version specified & (must contain numbers only)

Diagnosis
The version number specified in the RFC call &V1& does not comply withthe specifications. It must be four digits long and must only consistof numbers (which are stored in a character field).

System Response
The RFC was not accepted; The message was not received.

Procedure
Notify the manufacturer of the communication system used. It was herethat the version number was specified incorrectly.