When you click on "Top-up" button next to Stellar (XLM) position on your Nexo account a Stellar deposit address including a unique ‘Memo’ will be automatically created. This Memo is an extra piece of information that has to be included when sending a Stellars (XLM) to your Nexo account.
The Memo is used to determine to which account a given transaction should be assigned and credited to. The Memo is numerical (7 digits) and has to be included with all XLM deposits to your Nexo account.
An example Memo is:
Please, always ensure to include the correct Memo before sending your XLM deposit. Leaving out this information will lead to significant delays in crediting the transaction to your account, and can be irretrievable in some instances.