What is Live Cache Anchor

Question

Hi ,
Some times we see errors like "No Live Cache Anchor Found". Can somebody tell me in detail that what is a live cache anchor and why this inconsistency occurs. Is there a link containing detailed documentation?
Best Regards,
Chandan Dubey

Answer 1

Dear Chandan,
This error message "No Live Cache Anchor Found" states that for one or even for several characteristics combinations (see Transaction /SAPAPO/MC62) a so-called LiveCache anchor does not exist.In this case, a LiveCache anchor is a  pointer to one or several time series in the LiveCache.
There is one LiveCache anchor per planning area, characteristics combination (planning object) and model (model belonging to the planning version, see transaction /SAPAPO/MVM). If for one planning area, time series objects were created for several versions with different models, that means several LiveCache anchors exist for the same planning area and for the same characteristics combination.If you created time series objects for several versions of the same model, that means one LiveCache anchor
points to several time series in the LiveCache.                        
If there is no LiveCache anchor for a planning area, a model and a characteristics combination, this also means that no respective time series exists in the LiveCache and thus, this characteristics combination cannot be used for the planning with this planning area for all versions of the model.If this state occured for a certain characteristics combination, the above-mentioned error message occurs if either exactly this characteristics combination is selected or if a selection contains this characteristics combination.                                                                               
Possible causes and solutions:                                          
- Time series objects have not yet been created for the selected version.
Solution: Create time series objects (see documentation) 
- You are using a planning session with version assignment.For the version that was acutally selected, the time series objects were created, however, this is not the case for the assigned version.
Solution:Create time series objects for the assigned version.
- New characteristics combinations were created without the 'Create time series ob' option (see Transaction /SAPAPO/MC62). 
Solution:Execute the report /SAPAPO/TS_LCM_PLOB_DELTA_SYNC for the basis planning object structure of the planning area.This  will create the corresponding LiveCache anchors and LiveCache time series for all planning areas that used these basis planning object structure and for all versions of these planning areas for which time series objects already exist.                                                                               
If none of these possible solutions is successful, you can use report /SAPAPO/TS_LCM_CONS_CHECK to determine and correct the inconsistencies for a planning area ('Repair' option).                                  
I hope this helps.
Regards,
Tibor