Asset Manager - Digital signature not supported on ERP

We person installed ERP with Mobile addons:

• SMFND 630_740 0013 SAPK-63013INSMFND
• SMERP 630_740 0013 SAPK-63013INSMERP (SAM 2310)

I privation to configure Digital signature for SAP Asset Manager. When a idiosyncratic finishes a enactment order, helium signs the enactment bid (standard/default behaviour successful mobile application).

I followed this blog: https://community.sap.com/t5/enterprise-resource-planning-blogs-by-sap/sap-asset-manager-enable-digi...

In syclo, erstwhile I prime oMDO SAM2310_DSIG_CONFIGURATION oregon SAM2310_DSIG_COMMIT I get error:

Error: oMDO handler /MERP/CL_PM_DSIG_COMMIT_OD nary longer exist.

Error: oMDO handler /MERP/CL_PM_DSIGN_CONFIG_OD nary longer exist.

oMDO Handlers (ABAP code) are missing successful the system. I bash not person those problems (errors/missing code) connected S/4HANA systems.