QB Issue Resolution:

inventory should only be what they actually stock to sell, QB is not a catalog so going forward they need to know that

names also play a part in this 14,500 issue, if they are entering vendor and customer names that will never be reused consider moving them to generic names, gas, food, walkin-customer etc etc

you have two choices, move them to enterprise, or

these two utilities will create a new file with only active items, name, etc

Beginning balance transfer
http://marketplace.intuit.com/AppID-2441-Overview.aspx
Data Transfer
http://marketplace.intuit.com/AppID-2309-Overview.aspx

Resolution for Issue 'Item list has reached it’s limit but we need to add more inventory!!' available: Yes (Solved).
Source: Intuit Community forum.

Item list has reached it’s limit but we need to add more inventory!!: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Inventory
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Error Recovery for Inventory [Canada]
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