1835882 - XPRAS_AIMMRG error due to BADI Multiple active implementations

While performing an release upgrade or Enhancement package installation using the Software Update Manager (SUM) an error occurrs in phase MAIN_NEWBAS/XPRAS_AIMMRG

The following can be found in the log file XPRASUPG.ELG, for example:

Directory:    <DIR_PUT>/SUM/abap/log
Name:         XPRASUPG.ELG
---------------------------------------

XPRA ERRORS and RETURN CODE in SAPR731XPRA90000022.B08
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A4 EENHANCEMENT 481 Class pool "CL_IM_WFA_TM_INT_PAD00" of BAdI
implementation "WFA_TM_INT_PAD00" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WGRC_CAPA_CHECK" of BAdI
implementation "WGRC_CAPA_CHECK" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WIND_ENHANCEMENT_32" of BAdI
implementation "WIND_ENHANCEMENT_32" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WIND_ENHANCEMENT_35" of BAdI
implementation "WIND_ENHANCEMENT_35" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WIND_ENHANCEMENT_70" of BAdI
implementation "WIND_ENHANCEMENT_70" has been repaired
A2EEENHANCEMENT 475 Multiple active implementations for
definition "MRM_WT_SPLIT_UPDATE"

A4 EENHANCEMENT 481 Class pool "CL_IM_WXP_BIMP_015_LS" of BAdI
implementation "WXP_BIMP_015_LS" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WXP_BIMP_016_LS" of BAdI
implementation "WXP_BIMP_016_LS" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_WXP_BIMP_017_LS" of BAdI
implementation "WXP_BIMP_017_LS" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_IM_XI_SPI_AS" of BAdI
implementation "XI_SPI_AS" has been repaired
A4 EENHANCEMENT 481 Class pool "CL_XI_SPI_TOOL" of BAdI
implementation "XI_SPI_TOOL" has been repaired
2EEPU133 Errors occurred during post-handling "AFTER_IMP_SXCI"
for "SXCI" "L"
3 EPU135 "AFTER_IMP_SXCI" belongs to package "SECE"
2EEPU136 The errors affect the following components:
2EEPU137    "BC-DWB-CEX" ("Customer Enhancements")
1 ETP111 exit code           : "8"

SUM , EHP6 , EHP5, EHP installation, multiple BADI,Multiple active implementations, HRALE00INBOUND_IDOC, AFTER_IMP_SXCI, /SSCO/FAGL_ITEMS_CHD, GLE_MCA_ITEMS_CH_DAT, MRM_WT_SPLIT_UPDATE, "Multiple active implementations for definition" , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-DWB-CEX-BAD , BAdIs , Problem