There is no universal required software purchase for a duty explanation. Identify the actual evidence needed to describe the role accurately.
Spend on clarity rather than artificial precision
A tracking tool may serve the business but does not decide whether a duty is managerial. Separate evidence preparation and current official fees from optional operating tools. Ask what records already exist, such as calendars, project management logs or past performance reviews, before deciding that a new tracking system is necessary to describe how time is actually spent.
Assembling evidence from material that already exists is generally more persuasive and less costly than purchasing new software specifically to generate documentation after the fact, since a tool adopted for the case can look built for that purpose rather than for ordinary operations. Request a short review of what the existing records already show about supervisory and decision-making activity before authorizing a new purchase, and treat any gap in those records as the actual question to solve. Confirm whether the gap is really about missing records or about an unclear description of duties, since the second problem is not solved by better tracking software at all.
Ask whether any new tool, if genuinely needed, would serve an ongoing business purpose beyond the immigration filing, since a tool with no other use is harder to justify as evidence of managerial capacity.