diff --git a/code/sessions/hcph-sessions.py b/code/sessions/hcph-sessions.py
index 508470db..b0221acf 100644
--- a/code/sessions/hcph-sessions.py
+++ b/code/sessions/hcph-sessions.py
@@ -137,7 +137,7 @@ def generate(
         table["sessionwise_order"] = [1, 2, 3] * num_sessions
 
         table["bids_id"] = [
-            f"{row['session']:03d}{row['sessionwise_order']:02d}"
+            f"2{row['session']:02d}{row['sessionwise_order']:02d}"
             f"{SCANNER_NAME_MAPPINGS[row['device']]}"
             for _, row in table.iterrows()
         ]
diff --git a/code/sessions/schedule-wave2.md b/code/sessions/schedule-wave2.md
index 1e7bbcbd..d1f9dac6 100644
--- a/code/sessions/schedule-wave2.md
+++ b/code/sessions/schedule-wave2.md
@@ -1,38 +1,38 @@
 | day        | device   |   session | PE   |   bids_id |
 |:-----------|:---------|----------:|:-----|----------:|
-| 2024-08-20 | Prisma   |         1 | AP   |  00101060 |
-| 2024-08-20 | VidaFit  |         1 | RL   |  00102030 |
-| 2024-08-20 | Vida07   |         1 | PA   |  00103034 |
-| 2024-08-21 | Prisma   |         2 | RL   |  00201060 |
-| 2024-08-21 | VidaFit  |         2 | AP   |  00202030 |
-| 2024-08-21 | Vida07   |         2 | RL   |  00203034 |
-| 2024-08-22 | Prisma   |         3 | LR   |  00301060 |
-| 2024-08-22 | Vida07   |         3 | PA   |  00302034 |
-| 2024-08-22 | VidaFit  |         3 | AP   |  00303030 |
-| 2024-08-23 | Prisma   |         4 | PA   |  00401060 |
-| 2024-08-23 | Vida07   |         4 | RL   |  00402034 |
-| 2024-08-23 | VidaFit  |         4 | RL   |  00403030 |
-| 2024-08-24 | Prisma   |         5 | RL   |  00501060 |
-| 2024-08-24 | VidaFit  |         5 | PA   |  00502030 |
-| 2024-08-24 | Vida07   |         5 | LR   |  00503034 |
-| 2024-08-25 | Prisma   |         6 | PA   |  00601060 |
-| 2024-08-25 | VidaFit  |         6 | LR   |  00602030 |
-| 2024-08-25 | Vida07   |         6 | RL   |  00603034 |
-| 2024-08-26 | Prisma   |         7 | AP   |  00701060 |
-| 2024-08-26 | VidaFit  |         7 | AP   |  00702030 |
-| 2024-08-26 | Vida07   |         7 | AP   |  00703034 |
-| 2024-08-27 | Prisma   |         8 | LR   |  00801060 |
-| 2024-08-27 | Vida07   |         8 | LR   |  00802034 |
-| 2024-08-27 | VidaFit  |         8 | PA   |  00803030 |
-| 2024-08-28 | Prisma   |         9 | PA   |  00901060 |
-| 2024-08-28 | Vida07   |         9 | AP   |  00902034 |
-| 2024-08-28 | VidaFit  |         9 | LR   |  00903030 |
-| 2024-08-29 | Prisma   |        10 | LR   |  01001060 |
-| 2024-08-29 | Vida07   |        10 | AP   |  01002034 |
-| 2024-08-29 | VidaFit  |        10 | PA   |  01003030 |
-| 2024-08-30 | Prisma   |        11 | AP   |  01101060 |
-| 2024-08-30 | VidaFit  |        11 | LR   |  01102030 |
-| 2024-08-30 | Vida07   |        11 | PA   |  01103034 |
-| 2024-08-31 | Prisma   |        12 | RL   |  01201060 |
-| 2024-08-31 | Vida07   |        12 | LR   |  01202034 |
-| 2024-08-31 | VidaFit  |        12 | RL   |  01203030 |
\ No newline at end of file
+| 2024-08-20 | Prisma   |         1 | AP   |  20101060 |
+| 2024-08-20 | VidaFit  |         1 | RL   |  20102030 |
+| 2024-08-20 | Vida07   |         1 | PA   |  20103034 |
+| 2024-08-21 | Prisma   |         2 | RL   |  20201060 |
+| 2024-08-21 | VidaFit  |         2 | AP   |  20202030 |
+| 2024-08-21 | Vida07   |         2 | RL   |  20203034 |
+| 2024-08-22 | Prisma   |         3 | LR   |  20301060 |
+| 2024-08-22 | Vida07   |         3 | PA   |  20302034 |
+| 2024-08-22 | VidaFit  |         3 | AP   |  20303030 |
+| 2024-08-23 | Prisma   |         4 | PA   |  20401060 |
+| 2024-08-23 | Vida07   |         4 | RL   |  20402034 |
+| 2024-08-23 | VidaFit  |         4 | RL   |  20403030 |
+| 2024-08-24 | Prisma   |         5 | RL   |  20501060 |
+| 2024-08-24 | VidaFit  |         5 | PA   |  20502030 |
+| 2024-08-24 | Vida07   |         5 | LR   |  20503034 |
+| 2024-08-25 | Prisma   |         6 | PA   |  20601060 |
+| 2024-08-25 | VidaFit  |         6 | LR   |  20602030 |
+| 2024-08-25 | Vida07   |         6 | RL   |  20603034 |
+| 2024-08-26 | Prisma   |         7 | AP   |  20701060 |
+| 2024-08-26 | VidaFit  |         7 | AP   |  20702030 |
+| 2024-08-26 | Vida07   |         7 | AP   |  20703034 |
+| 2024-08-27 | Prisma   |         8 | LR   |  20801060 |
+| 2024-08-27 | Vida07   |         8 | LR   |  20802034 |
+| 2024-08-27 | VidaFit  |         8 | PA   |  20803030 |
+| 2024-08-28 | Prisma   |         9 | PA   |  20901060 |
+| 2024-08-28 | Vida07   |         9 | AP   |  20902034 |
+| 2024-08-28 | VidaFit  |         9 | LR   |  20903030 |
+| 2024-08-29 | Prisma   |        10 | LR   |  21001060 |
+| 2024-08-29 | Vida07   |        10 | AP   |  21002034 |
+| 2024-08-29 | VidaFit  |        10 | PA   |  21003030 |
+| 2024-08-30 | Prisma   |        11 | AP   |  21101060 |
+| 2024-08-30 | VidaFit  |        11 | LR   |  21102030 |
+| 2024-08-30 | Vida07   |        11 | PA   |  21103034 |
+| 2024-08-31 | Prisma   |        12 | RL   |  21201060 |
+| 2024-08-31 | Vida07   |        12 | LR   |  21202034 |
+| 2024-08-31 | VidaFit  |        12 | RL   |  21203030 |
\ No newline at end of file
diff --git a/code/sessions/schedule-wave2.tsv b/code/sessions/schedule-wave2.tsv
index 68078670..340491a2 100644
--- a/code/sessions/schedule-wave2.tsv
+++ b/code/sessions/schedule-wave2.tsv
@@ -1,37 +1,37 @@
 day	device	session	PE	bids_id
-2024-08-20	Prisma	1	AP	00101060
-2024-08-20	VidaFit	1	RL	00102030
-2024-08-20	Vida07	1	PA	00103034
-2024-08-21	Prisma	2	RL	00201060
-2024-08-21	VidaFit	2	AP	00202030
-2024-08-21	Vida07	2	RL	00203034
-2024-08-22	Prisma	3	LR	00301060
-2024-08-22	Vida07	3	PA	00302034
-2024-08-22	VidaFit	3	AP	00303030
-2024-08-23	Prisma	4	PA	00401060
-2024-08-23	Vida07	4	RL	00402034
-2024-08-23	VidaFit	4	RL	00403030
-2024-08-24	Prisma	5	RL	00501060
-2024-08-24	VidaFit	5	PA	00502030
-2024-08-24	Vida07	5	LR	00503034
-2024-08-25	Prisma	6	PA	00601060
-2024-08-25	VidaFit	6	LR	00602030
-2024-08-25	Vida07	6	RL	00603034
-2024-08-26	Prisma	7	AP	00701060
-2024-08-26	VidaFit	7	AP	00702030
-2024-08-26	Vida07	7	AP	00703034
-2024-08-27	Prisma	8	LR	00801060
-2024-08-27	Vida07	8	LR	00802034
-2024-08-27	VidaFit	8	PA	00803030
-2024-08-28	Prisma	9	PA	00901060
-2024-08-28	Vida07	9	AP	00902034
-2024-08-28	VidaFit	9	LR	00903030
-2024-08-29	Prisma	10	LR	01001060
-2024-08-29	Vida07	10	AP	01002034
-2024-08-29	VidaFit	10	PA	01003030
-2024-08-30	Prisma	11	AP	01101060
-2024-08-30	VidaFit	11	LR	01102030
-2024-08-30	Vida07	11	PA	01103034
-2024-08-31	Prisma	12	RL	01201060
-2024-08-31	Vida07	12	LR	01202034
-2024-08-31	VidaFit	12	RL	01203030
+2024-08-20	Prisma	1	AP	20101060
+2024-08-20	VidaFit	1	RL	20102030
+2024-08-20	Vida07	1	PA	20103034
+2024-08-21	Prisma	2	RL	20201060
+2024-08-21	VidaFit	2	AP	20202030
+2024-08-21	Vida07	2	RL	20203034
+2024-08-22	Prisma	3	LR	20301060
+2024-08-22	Vida07	3	PA	20302034
+2024-08-22	VidaFit	3	AP	20303030
+2024-08-23	Prisma	4	PA	20401060
+2024-08-23	Vida07	4	RL	20402034
+2024-08-23	VidaFit	4	RL	20403030
+2024-08-24	Prisma	5	RL	20501060
+2024-08-24	VidaFit	5	PA	20502030
+2024-08-24	Vida07	5	LR	20503034
+2024-08-25	Prisma	6	PA	20601060
+2024-08-25	VidaFit	6	LR	20602030
+2024-08-25	Vida07	6	RL	20603034
+2024-08-26	Prisma	7	AP	20701060
+2024-08-26	VidaFit	7	AP	20702030
+2024-08-26	Vida07	7	AP	20703034
+2024-08-27	Prisma	8	LR	20801060
+2024-08-27	Vida07	8	LR	20802034
+2024-08-27	VidaFit	8	PA	20803030
+2024-08-28	Prisma	9	PA	20901060
+2024-08-28	Vida07	9	AP	20902034
+2024-08-28	VidaFit	9	LR	20903030
+2024-08-29	Prisma	10	LR	21001060
+2024-08-29	Vida07	10	AP	21002034
+2024-08-29	VidaFit	10	PA	21003030
+2024-08-30	Prisma	11	AP	21101060
+2024-08-30	VidaFit	11	LR	21102030
+2024-08-30	Vida07	11	PA	21103034
+2024-08-31	Prisma	12	RL	21201060
+2024-08-31	Vida07	12	LR	21202034
+2024-08-31	VidaFit	12	RL	21203030