Custom spreadsheet solutions which survive long after the developer has "left the scene", are often those which users accept because they discover it _ among other benefits _ makes their work quicker and easier to do. That is why the best person to develop such solutions tend to be one who works in that area, and is therefore familiar with the way the manual system operates. S/he would have an "insider's" perspective of the best way to introduce automation other users will readily adopt _ even as it solves the identified problem(s).
You can choose to learn how to do it yourself _ or call in someone(an Excel VB Solutions Developer for instance) who knows how. Again, this would be dependent on your purpose, how proficient you are, and/or how much time you have at your disposal. Ultimately, even if someone develops a custom application for you, it should happen with YOUR guidance at every point to ensure that it does EXACTLY what you want it to do, and that you can easily _ with your developer's support/coaching _ learn how to make modifications to it in future, without needing to call back your developer.
In effect what I am saying is that companies which get the most value from spreadsheet automation(including using it to avoid expenditure on less adaptable commercial off the shelf applications) will be those which empower their users to routinely generate "in house" solutions. In such companies, you will find that only when the requirement becomes considerably specialised or complex, does the IT department get called upon to develop or purchase software solutions for user departments or functions with significant data recording and analysis needs.
2. Sourcing Capital _ For Expansion or Startup. You can make it easier for banks and prospective investors to back you financially and/or take the decision to buy into your business. Those already running their businesses will know that banks like to see detailed business records that show in real terms all aspects of a business' performance. Without detailed and comprehensive spreadsheet tracking, it might be difficult to show this. Agreed there are software applications that capture most of these. However, sometimes, you want to highlight certain scenarios or trends in a way that an off_the_shelf application cannot accommodate due to the uniqueness of your need. It is in this regard that the use of spreadsheet tracking becomes relevant.
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