Problems entering formulae
Quotes around my list or module names are removed after I have typed them and pressed Enter.  List or module names containing numbers or the full point are enclosed in single quotes to delimit the name. If the item is recognized, encapsulating quotes are removed. Note that if both the module name and the list item contain numbers or a full point, each individual item must be encapsulated. For example, a module named Sales 2017, with a line item named Region 3 would be referred to as 'Sales2017'.'Region 3' in a formula. 
When entering a formula I see a message telling me of a formula clash 
If you:
you will be blocked—a message appears telling you of the formula clash. For information on precedence and setting the scope of formulas, see Formula Editing. 
Unexpected results using a version formula 
The version formula for the entire model takes precedence over module scope version formula For information on precedence and setting the scope of formulas, see Formula Editing. 
Some common problems associated with particular functions
Function  Problem  Solution  
QUARTERVALUE  Summary value is three times what I expect  Check the result line item Time Scale in the result module Blueprint matches the Time Scale in the source module.  
TIMESUM  Aggregate TIMESUM formula does not work as expected  The TIMESUM function remains wellformed with a single Aggregate parameter, which is mandatory. However, missing intermediate parameters are not permitted.  
MOVINGSUM  Formula does not work as expected  MOVINGSUM requires the result to have a time dimension as it's used for moving sums and moving averages that vary over time. Use TIMESUM for modules with no Time dimension  
TIMESUM  My To and From values are not working as expected 
The only compulsory parameter is the line item you're aggregating. If both From and To parameters are omitted, all periods are added If To is omitted, the period defined in the From parameter is returned If the Aggregate parameter is omitted, default to SUM 

WEEKVALUE  The value returned for the Week summary is incorrect  Make sure that the Blueprint Time Summary method for result line items gives the summary you want. 