Number range issue - PDS

Hi,

In recent days, have come across many number range issue when transferring subcontracting PDS to APO.  The error message that occurs is "Number range issue (/SAPAPO/SC). In order to solve the issue please check the customizing in transaction SNRO for the interval . Make sure that the flag "External assignment" is removed for the allowed number range (000001 to 999999)

This should solve the issue

Thanks

Gomathi