Vesein Berachah

The following laws apply if you said vesein tal u’matar levrachah instead of vesein berachah:

• If you remembered before saying the second Yihiyu Leratzon (at the end of Shemoneh Esrei), go back to the beginning of Barech Aleinu. This applies even if you remembered before saying Hashem’s name at the end of Barech Aleinu.
• If you remembered after saying the second Yihiyu Leratzon, go back to the beginning of Shemoneh Esrei.
• If the time of the next tefilah has already arrived (e.g., if this took place during Shacharis and you only remembered after chatzos), daven the next tefilah twice: the first time for that tefilah and the second time to make up for the previous tefilah.

For the first thirty days, if you are uncertain whether you have said vesein berachah or vesein tal u’matar levrachah, it is assumed you have said vesein tal u’matar levrachah and you must go back. After thirty days, it is assumed you have said vesein berachah and you do not go back.