How To Fix T0311 - Set number range &1 &2 &3 to internal assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: T0 - General Treasury

• Message number: 311

• Message text: Set number range &1 &2 &3 to internal assignment

What causes this issue?

Number range &V1& &V2& &V3& is set to 'External number assignment'. The
function you want to execute, however, requires internal number
assignment.

How to fix this error?

Set number range &V1& &V2& &V3& to 'Internal number assignment'.
Nummernvergabe'.

Error message extract from SAP system. Copyright SAP SE.