[iroddis]

Your API only provides the ticker as the identifier, which makes me think either you have survivorship bias or aren’t tracking things appropriately. Tickers are delisted and recycled all the time. Do you provide a more industry-standard or custom reference ID as an option?

[financialdata]

No, not only. If you had studied the documentation more closely, you should have seen that you can also query using a CUSIP number, an ISIN number, or a sec.gov central index key.