We have always had standard pi tag naming convention....used "." as delimiter between parts of pi tag name...this enabled searching by including the delimiters in search thus coming with often faster/shorter search results. It appears that SQL and some of the new data analytic tools (Tableau, PowerBI, etc) don't like periods in their field / column names. Looking for good separator (don't like spaces). Did google search for "characters to avoid when doing analystics". Possible candidate is using hyphen, any Element naming convention suggestions people might have would be appreciated.