No extended memory available for pegging process

What causes this issue?

The main pegging process is (or the pegging parallel sessions are)
requesting extended memory for their processing.

System Response

The request for a possible memory extension was not granted.

How to fix this error?

If the pegging run fails because of an out-of-memory runtime error in
the main process or a parallel session, we recommend using the following
profile parameters to allow the allocation of additional memory:
<DS:PP.EM/SESSIONMEM_EXT>em/sessionmem_ext</>
<DS:PP.EM/SESSIONMEM_EXT_NONDIA>em/sessionmem_ext_nondia</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

INCLUDE PMMO_MMI_CUSTOMIZABLE_MSG OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.